This is the 9-8281 standoff guide, made for Thermal Dynamics SL100 series plasma torches. It's a simple but super helpful accessory that helps you maintain a consistent distance between the torch tip and your workpiece, which leads to cleaner, more even cuts. Brand new from PlasmaDyn, in its original packaging. If you're doing a lot of plasma cutting, especially freehand, this little guide can really improve your results and make the job easier. Just attaches to your torch - no tools needed.